Bobbin for transformer windings and the like



Jan. '12 192s 1569382 F. HABERLE BOBBIN FOR TRANSFORMER WINDINGS AND THE LIKE Filed July 5 1921 FATENT OFFlCE.

SACHSENWERK, LICI-IT- UIID KEAFT-A NEAR DRESDEN, SA OZ Z, GER-MANY.

KTIENGESELLSCHAFT, 0F NIEDERSEDLITZ,

BOBBIE FOB TEANSFQEVHER- VJINDIIIGS AND THE LIKE.

Application filed July 5,

(GRANTED UNDER THE IE'RQVESIONS 0'1 TH 1 0 all whom may concern:

most cases of many windings arranged or laid one above another.

Now, to prevent injury of the insulation of windings of separate bobbins during the manufacture of the latter and also within the finished bobbin-packet or bundle each separate bobbin is, according to the object of the present invention, provided with axially arranged supporting rings of metal or insulating material which are preferably provided or put on at once during the winding-procedure of the bobbins. The axial height of the supporting-rings is equal or somewhat larger than that of the separate bobbins so that said rings may be used as supports during the procedure of manufacture and even atter the mounting into the transformerwinding. The consequence of said improvement is that the insulation of the windings cannot be injured and jammed by the pressure caused during the piling up and pressing together of the bobbins.

ln case a supporting ring is arranged or situated at the inner and outer periphery of the bobbins the said rings ensure the bobbins also against daniaging by knocking or the like. it is also possible to provide an axial inner supporting ring and to wind the bobbin around its outside.

The object of the present invention is represented in some forms of construction as example in the drawing annexed.

Fig. 1 represents a detail longitudinal section of a portion of a transformer with my improved structure applied thereto.

Fig. 2 re Jresents a detail horizontal setion of the same.

1921. Serial No. 482,551.

E ACT OF MARCH 3, 1921, 41 STAT. L., 1313.)

Fig. 3 represents a detail longitudinal section of a modified form of transformer winding.

Fig. 4 represents a horizontal section of the same.

5 represents a detail longitudinal section of another form of bobbin, and

Fig. 6 represents a horizontal section of the same.

ln the form shown in Figs. 1 and 2, the transformer is constructed by windings consisting of high voltage coils or bobbins denoted by 2), low voltage coils denoted by c, and an iron core denoted by d, which core is adjacent the coils 0. Between the coils b and 0 there is disposed a cylinder 6 of insulat-ing material. The coils b are separated from each other by means of a plurality of spacers arranged equidistant so as to form channels or passages therebetween. The coils c are spaced apart by means of spacers and perform the same function as the spacers f.

To protect the insulation of the coils against mechanical injury and serve as a support for the bobbins, there is provided axially arranged rings a, the height of each of which rings is equal to or greater than the height of its bobbin. In the outer or high voltage coils Z), the supporting rings a are arranged ad acent the inner periphery of the coils, while in the inner or low voltage coils c the rings a. are located between the turns of the conductors of the coils.

In order to connect one coil with the adj acent coil, the supporting ring a is cut away as shown at a in Fig. 2, so that the wire may pass therethrough.

In Figs. 3 and at, I have illustrated a so caller disc winding, in which the windings of the high voltage coils Z) are each provided with two supporting rings a and the low voltage coils 0 provided with inner, outer and intermediate supporting rings a. The arrangement of the sets of supporting rings in each of the series of coils is such that the rings a of the coils b will be disposed in staggered relation with respect to the rings a of the coils c. In this instance, spacers f are located between each set of rings and coils and arranged to extend from the outermost ring to the innermost ring.

In the form shown in Figs. and (3, the inner and outer supporting rings a? are arranged a distance from the coils tor the purpose of radiating lost heat and to protect the surfaces of the coils when not covered.

In this structure spacers f are inserted between the coils and the supportint rings a to maintain and insure a space therebetween.

What I claim is:

1. In a winding for transformers or the like, the combination with a plurality of separate coils located one above the other, of a set of supporting hands, a band being asso ciated with each separate coil so as to form a solid body therewith and having an axial width at least equal to the corresponding dimension of its coil, said bands being located so as to surround the longitudinal axis of said coils.

In a winding for transformers or the like, the combination with a plurality of separate coils located one above the other, of a set of supporting hands, a plurality of bands associated with each coil so as to term asolid body therewith and having an axial width at least equal to the corresponding dimension of its coil, said bands being located so as to surround the longitudinal axis of said coils.

'3. In a winding for transformers or the like, the combination with a plurality of separate coils located one above the other, of a set of supporting hands, a band being associated with each separate coil so as to form a solid body therewith and having an axial width at least equal to the corresponding dimension of its coil, said bands being located so as to surround the longitudinal axis of said coils, and layers arranged between the separate coils.

l. In a winding for transformers or the like, the combination with a plurality of separate coils located one above the other, of a set of supporting bands, a band being associated with each separate coil so as to form a solid body therewith and having an axial width at least equal to the corresponding dimension of its coil, said bands being located outside the sections of the coils, and spacers arranged between the bands and coils.

5. In a winding for transformers or the like, the combination with a plurality oi separate coils located one above the other, of a set of supporting hands, a band being asso ciated with each separate coil so as to form a solid body therewith and having an axial width at least equal to the corresponding dimension of its coil, said bands being located outside the sections of the coils, spacers arranged between the bands and coils, and layers located between the coils.

6. In a winding for transformers or the like, the combination with a plurality of separate coils located one above the other, of a set of supporting hands, a band being associated with each separate coil so as to form a solid body therewith and having an axial width at least equal to the corresponding dii'nension of its coil said bands being located so as to surround the longitudinal axis of said coils, at least one of said supporting bands being interrupted for the passage of the coil winding;

'7. In a winding tor translbrmers or the like, the combination with a plurality of sep arate coils located one above the other, of a set or su 'iporting bands, a'band being asso- -iated with each separate coil so as to form a solid body therewith and having an axial width at least equal to the corresponding dimension of its coil, said bands being located so as to surround the longitudinal axis of said coils, at least one of said supporting bands being interrupted for the passage of the coil windin and layers located between the separate COllS.

8. In a winding tor transformers or the like, the combination with a plurality of separate coils located one above the other, of a set of supportingbands, a hand being associated with each separate coil so as to form a solid bod} therewith and having an axial width at least equal to the corresponding diroension of its coil, said bands being located so as to surround the longitudinal axis of said coils and arranged to serve as coil windings.

9. In a windingfor transformers or the lil-ze, the combination with a plurality of separate coils located one above the other, of a set of supporting hands, a band being associated with each separate coil so as to form a solid body therewith and having an axial width at least equal to the corresponding dimension of its coil, said bands being located so as to surround the longitudinal axis of said coils, a band of one coil being disposed vertically with respect to a band of an adjacent coil.

10. In a winding for transi ori'ners or the like, the combination with a plurality of step rte coils located one above the other, of a or supporting hands, a band being associated with each separate coil so as to form a solid body therewith and having an axial width at least equal to the corres ionding dimension of its coil, said bands being located so as to surround the longitudinal axis of said coils, a band of one coil being disposed in staggered relation with respect to a band of an adjacent coil.

In testimony that I claim the toregoing as 1y inventioi'i, I have signed lllv' name this ,rinth day oi June, i921.

FRIEDRICH Hi-iBERLE. 

